package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.pojo.MemberCount;
import com.itheima.service.ReportService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @author Dugen.Zhu
 * @date 2020-01-07 14:48
 */
@Controller
@RequestMapping("/report")
public class ReportController {

    @Reference
    private ReportService reportService;

    @RequestMapping("/getMemberReport")
    @ResponseBody
    public Result getUsername() {
        List<Map<String, Object>> mapList = reportService.findMember();
        if (mapList != null) {
            List<String> monthsList = new ArrayList<String>();
            List<String> memberCountsList = new ArrayList<String>();
            for (int i = 0; i < mapList.size(); i++) {
                Map<String, Object> map = mapList.get(i);
                String month = (String) map.get("months");
                monthsList.add(month);
                BigDecimal bigDecimal = (BigDecimal) map.get("memberCount");
                String totalMemberNumber = bigDecimal.toString();
                memberCountsList.add(totalMemberNumber);
            }
            MemberCount memberCount = new MemberCount(monthsList, memberCountsList);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, memberCount);
        }
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
            /*
        {
            "data":{
                    "months":["2019.01", "2019.02", "2019.03", "2019.04"],
                    "memberCount":[3, 4, 8, 10]
                  },
            "flag":true,
            "message":"获取会员统计数据成功"
        */
    }

    @RequestMapping("/getSetmealReport")
    @ResponseBody
    public Result getSetmealReport() {
        /*{
            "data":{
            "setmealNames":["套餐1","套餐2","套餐3"],
            "setmealCount":[
                            {"name":"套餐1","value":10},
                            {"name":"套餐2","value":30},
                            {"name":"套餐3","value":25}
                            ]
               },
            "flag":true,
            "message":"获取套餐统计数据成功"
}*/
        List<Map<String, Object>> mapList = reportService.findSetmeal();
        Map map = new HashMap();
        if (mapList != null) {
            map.put("setmealCount", mapList);
            List list = new ArrayList();
            for (Map<String, Object> stringObjectMap : mapList) {
                String name = (String) stringObjectMap.get("name");
                list.add(name);
            }
            map.put("setmealNames", list);
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, map);
        }
        return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
    }

    @RequestMapping("/getBusinessReportData")
    @ResponseBody
    public Result getBusinessReportData() {
        try {
            Map<String, Object> resultMap = reportService.findBusiness();
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, resultMap);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
    }


    //导出运营数据到Excel并提供客户端下载
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.findBusiness();

            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获取Excel模板文件绝对磁盘路径
            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";

            //基于POI在内存中创建一个Excel文件
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));

            XSSFSheet sheet = excel.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //创建输出流，用于从服务器写数据到客户端浏览器
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            excel.write(out);

            out.flush();
            out.close();
            excel.close();

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据到PDF文件并提供客户端下载
    @RequestMapping("/exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.findBusiness();

            //取出返回结果数据，准备将报表数据写入到Excel文件中
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获取pdf模板文件绝对磁盘路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jasper";

            //编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);

            //填充数据---使用JavaBean数据源方式填充
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperPath, result, new JRBeanCollectionDataSource(hotSetmeal));

            //创建输出流，用于从服务器写数据到客户端浏览器
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");

            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint, out);

            out.flush();
            out.close();

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}




